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E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)
Published by Universitas Udayana
ISSN : 23016515     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
E-Jurnal Agroekoteknologi Tropika (JAT) adalah peer-reviewed, open access jurnal, diterbitkan oleh Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana. JAT menerbitkan hasil peneitian original dan review artikel dalam bidang Ilmu tanah dan lingkungan, Agronomi, hama dan penyakit tumbuhan, dan arsitektur lanskap. Penulis diharapkan mengimkan karya tulisnya yang belum pernah dipublikasikan, sedang di-review atau sedang dipertimbangkan untuk diterbitkan di jurnal atau media lain secara lengkap. Ruang lingkup JAT mencangkup, tetapi tidak terbatas pada bidang berikut: kimia dan kesuburan tanah, biologi tanah, fisika dan konservasi tanah, manajemen suberdaya lahan, pengendalian hama dan penyakit terpadu, hama tanaman, penyakit tanaman, biopestisida, bioteknologi tumbuhan, agronomi dan hortikultura, benih dan pemuliaan tanaman, ekofisiologi, dan arsitektur lanskap.
Arjuna Subject : -
Articles 468 Documents
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Efektivitas Insektisida Metomil 40% Terhadap Serangan Ulat Grayak (Spodoptera Exigua Humber) pada Tanaman Bawang Merah (Allium Cepa L.) di Desa Songan Kintamani Bangli I MADE REDI DWIJAYA HENDRA; I KETUT SUMIARTHA; I WAYAN SUSILA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.2, April 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Effectiveness of Metomyl Insecticide 40% to Armyworm (Spodoptera exigua Hubner) On Red Onion Plant (Allium cepa L.) in Songan Village District of Kintamani Bangli Regency The Research of Metomyl Insecticide 40% to damage caused by armyworm (Spodoptera exigua Hubner) On Red Onion Plant (Allium cepa L.) in Songan Village District of Kintamani Bangli Regency was conducted in order to determine the percentage of damage of armyworm (Spodoptera exigua) and the relationship between the pareentage of damage and production after treated by metomil insecticide 40%. This onion tuber harvest after treatment with insecticide with 40% active metomyl.this research was done from 2016, November until 2017 January. Randomized block design was used in this studay with 5 treatments and replicated 5 times. The results showed that the perceutage of demage caused by Spodoptera exigua on onion plant treated by metomiyl insecticide 40% were significant different compare to control. The highest percertage of damage was found in control 13.5% and the lowest percentage of damage was found in treated consentration of 2,00 g/l, was 1,99%, both was observed in 49 days after transplanting, the production of wet tuber in average was found 1,3 kg in treatment of 2g/l and 1,1kg in countred, the production was calculated by avrage of 10 plants. The relationship between percentage of damage and production are very weak to strong unsignificant and reversely propotional.
Pemetaan Potensi Lokasi Pengungsian Akibat Bencana Letusan Gunung Agung di Kabupaten Karangasem Berbasis Sistem Informasi Geografis (SIG) I GEDE ADHI IRAWAN; I WAYAN DIARA; IDA BAGUS PUTU BHAYUNAGIRI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.4, Oktober 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Mapping Potential Location of Evacuation Due to the Mount AgungEruption Disaster in Karangasem Regency Based on Geographic Information System (GIS) The eruption of Mount Agung was a disaster for people in Karangasem Regency. The volcanic eruption caused loss of life. One of the countermeasures washe provision of location point for evacuation based on geographic informationystem and the construction of WebGIS with the ArcGIS Online program so that itcan be accessed by people easily. This research was done in December 2018 untilApril 2019. The methods were used field survey and scoring method that utilizingpatial data. The survey was done outside of the disaster-prone area in KarangasemRegency and dangerous radius 6, 9 and 12 km based on Mount Agung disaster areamap, the Province of Bali such as school, balai banjar and sport field. School, balaibanjar and sport field have the potential to become refugee camps. The School hashe high and medium potential classes that are 102 and 92 places. Balai banjar hashigh, medium and low potential classes that are 126, 101 and 20 places. Sport fieldhas medium and low potential classes that are 1 and 6 each places. The informationystem of potential refugee locations in Karangasem Regency based on WebGIS canprovide information to the government and the community so that it can reduce thempact caused by the disaster of Mount Agung. The WebGIS that can be accessed is:https://gunungagung.maps.arcgis.com/home/index.html.
Kajian Potensi Dan Status Kerusakan Tanah Pada Lahan Pertanian di Kecamatan Denpasar Timur RISKA PUTRI RUKMANA; TATI BUDI KUSMIYARTI; TATIEK KUSMAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.3, Juli 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Study of Potential and of Status Soil Degradation at Agriculture Land in East of Denpasar Sub-DistrictA study was aiming to evaluate soil degradation based on the Standard Criteria of Soil Degradation for Biomass Production under Indonesian Government Regulation No. 150 Year 2000 had done in East of Denpasar Sub-District on 2014. The study was conducted on February to July 2014, at 5 selected observation area. Selection of sampling area was done according to Stratified Purposive Sampling method. Evaluation of soil degradation was carried out as following :(1) to establish a threshold value of soil characteristics and eroded soil potential based on Standard Criteria of Soil (matching process), and (2) to determine the key factors of soil characteristics responsible for soil damage.The study results shows that: Soil condition in the entire East of Denpasar District area could be divided into two group i.e. not degraded at land unit T3 (45,35 ha) and slightly degraded at land unit T1 (248,31), land unit T2 (122,01 ha), land unit 4 (33,72 ha), and land unit 5 (19,28 ha), soil degradation caused by soil permeability.
Uji Keefektifan Rizobakteri dalam Menghambat PertumbuhanJamurColletotrichum spp. Penyebab Antraknosa pada Cabai Merah (Capsicum annuum L.) NI LUH GEDE SRIYANTI; DEWA NGURAH SUPRAPTA; I KETUT SUADA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.1, Januari 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Effectiveness of Rhizobacteria to Inhibit the Growth of Colletotrichum spp. the Cause of Antracnose on Red Chilli (Capsicum annuum L.) Colletotrichumspp. is one of pathogenic fungi that cause significant losses on red chilli. The use of rhizobacteria is considered as an alternative to control the growth of the fungus. The use of bio agent control is considered as selective and environmentally friendly. The aim of this study is to know the effectiveness of rhizobacteria and their filtrates in suppressing the growth of Colletotrichumspp. Results of this study showed that treatment with Pseudomonas fluorescens isolate TBZA on PDA medium could suppress the growth of Colletotrichumspp. by 94% when compared to control 14 days after inoculation. Treatment with filtrate of P. fluorescens isolate TBZA could suppress the anthracnose disease indicated by the lower disease incidence viz 32%. It is necessary to conduct further experiment under field condition to know the effectiveness of P. fluorescens isolate TBZA to suppress the growth of Colletotrichumspp. In addition isolation and identification of antifungal compounds in the filtrate is necessary to be done. Keywords: rhizobacteria, biologicalagents, and Colletotrichumspp.
Invasi dan Tingkat Serangan Ulat Bawang (Spodoptera exigua Hubner) pada Dua Kultivar Tanaman Bawang Merah di Desa Songan, Kecamatan Kintamani, Kabupaten Bangli DICKY MARSADI; I WAYAN SUPARTHA; A.A.A.A. SRI SUNARI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.4, Oktober 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Invasion and Attack level of Beet Armyworm (Spodoptera exigua Hubner) on Two Cultivars of Onion in Songan Village, Kintamani, Regency of Bangli This study was aims to determine the invasion and attack level of beet armyworm (S. exigua) on two cultivars of onion. The study was conducted 940 m above sea level at Songan Village, Kintamani, Regency of Bangli from December 2016 to February 2017. This study implemented surveying method by taking 10 samples plant per plot with 5 replications. Sampling was conducted by using U-sistematics patern. The results showed that the invasion occurred during the onion crop was 7 days after planting (dap) and experienced a peak in old plants 17 dap. There was difference larvae of S. exigua population on both varieties of onion crop from the initial observation until the end of the observation. The highest larval populations present in Batu Ijo variety in the amount of 2.4 larvae per clump while variety of Bima Brebes was 1.3 larvae per clump. The attacking level of Bima Brebes variety was 4,86% lower compared on Batu Ijo which is 9,95%. Both onion varieties show difference in productions where Batu Ijo variety has 112,2 grams per clump while Bima Brebes 125,8 grams per clump.
Uji Efektivitas Ekstrak Mimba (Azadirachta indica A. Juss.) untuk Mengendalikan Hama Penggerek Daun pada Tanaman Podocarpus neriifolius I PUTU AGUS HENDRA WIBAWA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.1, Januari 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The effectiveness analysis of neem plant (Azadirachta indica A. Juss.) to control leaf borer on plant Podocarpus neriifolius Plant maintenance and development cannot be avoided from pests and diseases. Losses due to pest or disease attacks encourage patients to control variousefforts. So far the pest and disease control efforts carried out are still based on synthetic pesticides. The use of various types of synthetic pesticides, on the other hand bring problems to the environment such as causing poisoning to humans, killing non-target organisms, secondary pest outbreaks, pest resistance, soil, water and air pollution. One alternative pest control that can be done is by organic pesticides. One of the plants reported to have the ability to control pests is the neem plant (Azadirachta indica). This study aims to determine the effectiveness of neem extract in controlling leaf borer caterpillar on Podocarpus neriifolius compared to vegetable pesticides Dane brand and synthetic pesticides. The results of the research conducted, it was found that the most effective dose of mimba extract was 80 g/liter. Both wet and dry extracts are equally effective in controlling pests. Control using dry leaf extract with dose of 80 g/liter is more effective than using the Dane brand pesticide in three times the dose.
Prediksi Erosi dan Perencanaan Konservasi Tanah dan Air pada Daerah Aliran Sungai Saba I GUSTI AYU SURYA UTAMI DEWI; NI MADE TRIGUNASIH; TATIEK KUSMAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol. 1, No. 1, Juli 2012
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Erosion Prediction and Planning of Soil Water Conservation at Saba Watershed The purpose of this research was to predict the actual erosion (A) at watershed Saba and planning of soil and water conservation when the actual erosion is more than tolerable erosion (EDP) at watershed Saba. The USLE (Universal Soil Loss Equation) was used to predict erosion and planning of soil and water conservation. The result showed that erosion at watershed Saba level was varied from very slight to very severe. The lowest erosion in range 0,16 until 12,32 ton/ha/yr on land unit 1, 2, 27, 28, 29 (Pujungan village), 9, 15 (Pupuan village), 13 (Pucaksari village), 21, 24 (Patemon village), 22 (Ringdikit village), 23 (Pengastulan village) and 25 (Bengkel village), the areas is about 3.337,616 ha (26,19 %). The slight erosion was 37,94 ton/ha/yr on land unit 12 (Bantiran village), the areas is about 399,585 ha (3,14 %). The moderate erosion in range 76,26 until 165,80 ton/ha/yr, on land unit 4, 7, 30 (Pujungan village),10 (Subuk village), 18 (Kedis village), 19 (Bengkel village) and 26 (Patemon village), the areas is about 6.101,079 ha (47,89 %). The severe erosion in range 192,02 until 403,63 ton/ha/yr, on land unit 3, 5 (Pujungan village), 6 (Pupuan village), 14, 20 (Subuk village), 16 (Ularan village) and 17 (Kedis village), the areas is about 1.852,339 ha (14,54 %). The very severe erosion in range 545,97 until 728,60 ton/ha/yr, on land unit 8 (Pujungan village) and 11 (Subuk village ), the areas is about 1.049,935 ha (8,24 %). Planning of soil and water conservation is done by planting cover crops, plant growing storied canopies and constructed terrace. Keywords : prediction of erosion, soil and water conservation planning
Pengaruh Jenis Rhizobakteria terhadap Pertumbuhan dan Hasil Tanaman Kedelai (Glycine max (L). Merril) I GEDE ARDYAWAN; I GUSTI NGURAH RAKA; I NENGAH ARTHA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.1, Januari 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Influence of Type of Rhizobacteria on Growth and Yield of Soybean Crops (Glycine Max (L). Merril) This study aims to determine the type of rhizobacteria that have better ability in increasing the growth and yield of soybean crops. The research was conducted in August 2016 until December 2016, located in Angantaka Village, Abiansemal District, Badung Regency. The design used was Randomized Block Design consisting of 5 treatments, using 5 replications. This study observed plant height, number of leaves, number of branches, leaf chlorophyll content, fresh weight of plant parts above soil, fresh weight of underground plant parts, weight of oven dried above ground plant parts, weight of oven dried underground plant part, root nodules per plant, number of pods per plant, number of contained pods per plant, total weight of seed per plant, weight of 1000 seeds, soybean yield per hectare.The results showed that all four rhizobacteria RB35 (undis 1), RB36 (undis 3), RB3 (kara benguk), and RB9 (lamtoro) were able to increase the growth and yield of soybean crops. However, most effective of the four rhizobacteria are RB35 (Undis 1) and RB36 (undis 3). The use of rhizobacteria RB35 (5.59 tons ha-1) and RB36 (5.47 tons ha-1) gave the highest yield of soybean and was not significantly different between the two. Rhizobacteria RB35 (Undis 1) yielded 126.32% and rhizobacteria RB36 (Undis 3) 121.46% compared with plants without rhizobacteria or control (2.47 tons ha-1).
Pemetaan Kondisi Sifat Fisik Tanah di Subak Jatiluwih Kecamatan Penebel, Kabupaten Tabanan RIZKY DELLI ZULKARNAEN; I NYOMAN SUNARTA; NI MADE TRIGUNASIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.3, Juli 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Mapping the condition of physical properties of land in Jatiluwih Subak, Penebel District, Tabanan Regency Jatiluwih Subak has different slopes and slopes which are quite calculated for sustainability in the environment by knowing the physical properties of the soil and the management of rice fields on slope farms. To find out the conditions and land management on the slopes it is necessary to investigate the physical properties of the soil, together with the management of land in reality. Research conducted by survey methods and soil samples taken were analyzed at the Soil and Environmental Laboratory, Faculty of Agriculture, Udayana. Whereas land management data was obtained through interviews with soil samples. The purpose of this study was to determine the physical properties of the soil and the reality treatment of different slope gradients in Subak Jatiluwih, Penebel, Tabanan Regency. Research begins with making maps using the Geospatial Information System application by overlaying the soil type map, slope slope map, and land use map. Four homogeneous land were obtained and each soil unit was taken as a composite sample and analyzed the physical properties of soil in the laboratory which included texture, specific gravity, porosity, permeability, and infiltration. The condition of the physical properties of land in Jatiluwih Subak varies. Bulk Density has criteria of low to moderate, porosity conditions between good to shaft, soil permeability has the criteria of being moderate, rather quickly advancing water or air in the soil. Soil infiltration conditions tend to be the same ie fine pores. Research on the location of soil texture shows the presence of clay, clay loam, and loam.
Analisis Kinerja Daerah Aliran Sungai Unda Berdasarkan Indikator Penggunaan Lahan dan Debit Air NI NYOMAN ARI PUTRI MURTIYAH; I NYOMAN SUNARTA; I WAYAN DIARA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.2, April 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Analysis of Unda Watershed Perfomanced Based on Land Use and Water Discharge Indicators The Unda watershed has experienced a decline in forest area, a decline in water catchment areas, an increase in residential areas and is known to have potential flooding. If the function of a watershed is disrupted, the hydrological system will be disrupted. The purpose of this study was to analyze changes in land use, water discharge and to know the performance of the Unda watershed which includes the precentage of vegetation cover, coefficient of flow regim and annual flow coefficient. The research method is descriptive comparative, by comparing the two parameters, namely the land use and water discharge in 2007, 2011 and 2016. The results showed that land use in Unda watershed were dominated by fields, forests, paddy fields, gardens, shrubs, settlement and open field. During the 2007-2016 period, the highest water discharge occurred in November 2016 amounting to 7.78 m3/sec while the lowest water discharge occurred in March 2011 amounting to 1.72 m3/sec. The results of watershed performance analysis based on indicators of percentage of vegetation cover indicate that the Unda watershed is at a medium level of damage and tends to deteriorate with a range of values ??of 41.42 - 22.63%, while in the flow regime coefficient indicator and annual flow coefficient, indicates that the Unda watershed is at a medium level of damage. The flow regime coefficient value of the 2007-2016 period is at a value of 9.81 - 1.65, then the annual flow coefficient value is at the value of 0.17 - 0.36%. Further research needs to be done regarding the assessment of watershed performance based on other indicators so that the performance of the Unda watershed is known from all aspects.

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